"Yoga" is a hindi word, which literally means ADDITION. The ADDITION is an operation performed on two or more entities with same characteristics, with same or different strength to obtain a new entity with same characteristics as that of the addends but with an increased strength equal to the sum of the strengths of the addends. All the disciplines of "Yoga" works on this very principle. Only the scenario is different, addends are different at different stages. Here, the addition is a cyclic process and the final stage is to free oneself out of cycles to attain a state which cannot be qualified using any adjective, neither positive nor negative and the state is called "NIRVANA". Although, NIRVANA is understood and interpreted by different people in different ways but the truth is something different and the truth is that

"This state cannot be defined(does not mean that it is undefined). One can only experience it and once you experience it, you don't have an opportunity to explain it."